Seigo Asada

BDO

Asada won the Japan Open in 2012 by beating Osamu Niki in the final. He won the tournament for the second time in 2014, beating Katsuya Aiba in the final. Asada reached the last 16 of the 2014 World Masters in Hull and beat Darryl Fitton in the first round before losing to Mark McGeeney. He qualified for the 2015 BDO World Darts Championship, losing to Brian Dawson in the preliminary round. Asada qualified for the 2016 BDO World Darts Championship, beating Darius Labanauskas 3–1 in the preliminary round.

PDC

In 2017, Asada won the Japanese Championship, organised by the PDJ (Professional Darts Japan). Thereby, he qualified for the 2018 PDC World Championship. On 26 November, he was drawn for a preliminary round game at the World Championship against Australian Gordon Mathers, whom he defeated 2–1, but was then eliminated 0–3 by eventual tournament winner Rob Cross.

In 2018, Asada won three events on the inaugural PDC Asian Tour,^[3][4][5] and also won the Japanese Championship to qualify for the 2019 PDC World Darts Championship. At the World Championship, Asada won his first round match 3–2, despite losing the first two sets to Krzysztof Ratajski, upsetting the Pole who had won three PDC Pro Tour titles that year.^[6] In the second round, Asada's match again went to a deciding set, which he lost to James Wade. The match was controversial, with Wade appearing to shout at Asada on stage, and saying in the post-match interview that he "wanted to hurt [Asada] in his face".^[7] This was criticised by Sky Sports pundit Wayne Mardle, who described his behaviour as "thuggish" and "overly aggressive".^[7] Wade apologised the next day, attributing his behaviour to an episode of hypomania.^[8]

BDO

• 2015: Preliminary round (lost to Brian Dawson 1–3)
• 2016: First round (lost to Wesley Harms 2–3)
• 2017: Preliminary round (lost to Jeff Smith 1–3)

PDC

• 2018: First round (lost to Rob Cross 0–3)
• 2019: Second round (lost to James Wade 2–3)
• 2020: Third round (lost to Peter Wright 2–4)